*{
    margin: 0; padding: 0;
}
.wrapper{
    margin: auto;
    width: 700px;
    margin-top: 50px;    
}
.main{
    float: left;
    width: 700px;
    box-shadow: 1px 1px 10px #252525;
    -moz-border-radius: 7px;
    background: #f6f6f6;
}
.menu{
    float: left; width: 100%; text-align: center;
}
.menu ul {
    float: left; list-style: none; margin: 5px;
}
.menu ul li {
    float: left;list-style: none;margin: 0 5px; border: 1px solid #090; padding: 5px 10px;
}
.menu ul li a{
    text-decoration: none;
}
.banner{float: left;width: 100%;height: 100px;text-align: center;border-bottom: 1px solid #090}
.content{ float: left; width: 100%; height: 100px; padding: 100px 0;border-bottom: 1px solid #090}
.footer{float: left;width: 100%;height: 30px;padding: 30px 0}